(19)

(11)

EP 1 652 083 A2

(12)

(88) Date of publication A3: 03.11.2005 (43) Date of publication: 03.05.2006 Bulletin 2006/18 (21) Application number: 04779984.6 (22) Date of filing: 04.08.2004

(51) International Patent Classification (IPC):  G06F 9/46(1980.01) (86) International application number: PCT/US2004/025068 (87) International publication number: WO 2005/017675 (24.02.2005 Gazette 2005/08)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR Designated Extension States: AL HR LT LV MK (30) Priority: 05.08.2003 US 492328 P (71) Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. Kadoma-shi, Osaka 571-8501 (JP)	(72) Inventors: SHIOMI, Takakazu Osaka, Osaka 573-0045 (JP) WATANABE, Shigeaki Mount Laurel, NJ 08054 (US) IMANISHI, Yoshinori Hiroshima, Hiroshima 739-0025 (JP) (74) Representative: Pautex Schneider, Nicole Véronique et al Novagraaf International SA 25, Avenue du Pailly 1220 Les Avanchets - Geneva 1220 Les Avanchets - Geneva (CH)